Rounding-out machine



(No Model.)

' V. H. WHITTAKER.

ROUNDING OUT MACHINE.

Patented June 19, 1888.

III 1 IIIIIIIIIIIIIIIIIIIIII! IIIZI N. PETERs-Phmwliumnm, Wahlngtm. ll LL UNITED STATES PATENT OFFICE.

VICTOR H. \VHITTAKER, OF BRADFORD, ASSIGNOR TO HIMSELF AND ELLEN V. WHITTAKER, OF GLOUCESTER, MASSACHUSETTS.

ROUNDlNG-OUT MACHINE.

SPECIFICATION forming part of Letters Patent No. 384,807, dated June 19, 1888.

Application filed April 25, 1888. Serial No. 271,817. (No model.)

To aZZ whom, it may concern.-

Be it known that LVIoTQR H.WHITTAKER, of Bradford, in the county of Essex, State of Massachusetts, have invented a certain new and useful Improvementin Rounding-Out Machines, of which the following is a description sufficiently full, clear, and exact to enable any person skilled in the art or science to which said invention appertains to make and use the same, reference being had to the accompanying drawings, forming part of this specifica tion, in which- Figure 1 is a top plan view of a roundingout machine embodying my improvement; Fig. 2, a vertical transverse section of the same, taken on line as 00 in Fig. 1, some of the parts being shown in side elevation; Fig. 3, an enlarged front elevation of the knife and holder detached; Fig. 4., a side elevation of the same; Figs. 5 and 6, front and edge elevations, respectively, of the knife detached; and Fig. 7,a sectional view of the same.

Like letters and figures of reference indicate corresponding parts in the different figures of the drawings.

My invention relates more especially to the knives and their holders employed in machines for roundingout the soles of boots and shoes, being particularly applicable to the ma chines commonlyknown as the Stevens machines; and it consists in certain novel features, as hereinafter fully set forth and claimed, the object being to produce a more effective and otherwise desirable device of this character than is now in ordinary use.

The nature and operation of the improvement will be readily understood by all conversant with such matters from the following explanation:

In the drawings, A represents the body or frame of the machine, B the wheel, and C the sole-plate.

The body consists of a wooden box, preferably oval or oblong in top plan view, as shown in Fig. 1. An endless slot, or, following closely the outline of a shoe-sole, is cut centrally in the upper side, a, of the box A. The plateD thus formed is supported at the toe and heel portions by vertical standards b, secured within the box A. Journaled horizontally in the side arranged sprocket wheel or pulley, i, a similar pulley being jonrnalcd in thesame plane on the forward standard, I). A chain belt, is, is disposed on the pulleys 1', said belt being connected with the knife-carriage H by a stud, q, which projects through the slot 00, as hereinafter described.

The soleplate 0 consists of a metallic plate supported by two verticallyarranged standards, l, secured to the toe and heel portions of the plate D. f

The body of the carriage H consists of a box, m, secured to a plate, p, having a downwardly projecting stud, q, on its inner end, said arm passing through the slotx and having its lower end secured to the chain-belt 7a. A plate, 1', (see Fig. 1,) is fitted to slide horizontally in ways t, formed in the upper portion of the ends of the body of the box m. Coiled springs 11 are disposed in the box m, said springs being compressed between the rear side of said box and avertical plate, w,(see Fig. 2,) secured to the plate 1' and acting expansively to keep the plate r forced outward toward the soleplate 0. A lever, 5, is pivoted to one of the ways if and passes between studs 6 on the plate r, the purpose of said lever being to enable the operator to force the plate forward by hand when necessary.

A bracket, K, havinga spindle, 7, adapted to enter a socket (not shown) formed in the inner end of the plate r,is provided for carrying the knife E. The upper end of the bracket K is provided with vertically-arranged inclined ways 10, in which the knife E is disposed, said knife being held in position therein by a set-screw, 12. The knife is provided with a chisel-edge, 18, on one end, and at its opposite end with an edge, 14, which is /\-shaped in crosssection, as best shown in Figs. 4 and 6. A corresponding corner of each of the edges ,13 and 14 is beveled at 16 to enable it to rest secured in the ways 10, so that a beveled corner, 16, rests on the table 17 of the bracket K, the spindle of said bracket being inserted in the spindle-hole in the plate 1'. By revolving the handle B the carriage H is caused to travel by means of the chain-belt k, the knife E at the same time cutting or rounding out the sole on the table 0 to conform to the pattern-plate. It will be readily understood that the springs 1; will keep the outer face of the knife against the pattern-plate, and that when their pressure is not sufficient for that purpose the operator, by means of the lever 5, can effect this result and cause the knife to cut in accordance with the pattern.

By reversing the knife so that the beveled portion ofthe A-shaped edge rests on the table 17 and the flanges 25 rest against the outer face of the clamp 10, it will be seen that the cutting-edge of the knife is farther removed from the pattern-plate, thus enabling a broader sole to be cut with the same pattern than is possible with the knives as at present constructed.

Having thus explained my invention, what I claim is- 1. In a rounding out machine, the hereindescribed knife having a chisel-shaped edge at one end and a A-shaped edge at the opposite end, corresponding corners of said edges being cut off or beveled to adapt it to rest upon the table of the knife-bracket, substantially as set forth.

2. In a rounding-out machine, the l1ereindescribed knife having a chisel-edge at one end, a A-shaped edge at the opposite end, and longitudinal flanges along the sides of one of its faces, corresponding corners of said edges being cut ot'for beveled to adapt it to rest upon the table of a knife braeket, substantially as described. 7

3. In a rounding-out machine, the hereindescribed knife, 'the same consisting of the body E, having the chisel-edge 13, A-shaped edge 14, beveled corners 16, and flanges 25, constructed and arranged substantially as and for the purpose described.

4.. In a rounding-out machine of the character described, the bracket K, having the table 17, stud 7, inclined clamp 10, and screw 12, in combination with theknife E, carriage H,and adjunctive mechanism for actuating said earriage, substantially as set forth.

5. In a rounding-out machine of the character described, the bracket K, having the table \Vi tnesses:

FRANCIS H. PEARL, JosEPH H. PEARL. 

